LETTER VISIBILITY CHART
 
 
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Building Sign Letters Cast Metal Letters Metal Sign Letters Formed Plastic Letters Acrylic Sign Letters and Logos Minnesota Letters Foam Sign Letters Foam w/Metal Face Sign Letters Channel Sign Letters Reverse Channel Sign Letters Changeable Letters Cast Aluminum Sign Letters Cast Bronze Letters Brass Sign Letters Aluminum Letters Bronze Letters Stainless Steel Sign Letters Mini Metal Letters Fabricated Metal Sign Letters Metal on Acrylic Fabricated Metal GemLeaf

Letter
Visibility
Chart

The information presented in this chart is based on lettering using the font Helvetica as black text on a white background in a composition using optimal negative space seen in natural lighting. This condition represents a sign with maximum legibility. Factors that would decrease the legibility of the sign are: font selection, color choice, lighting, negative space, and other environmental factors.

Upper &
Lower case

ALL
CAPITALS

letter
height

maximum
legible
distance

letter
height

maximum
legible
distance

0.5' 14'
0.75' 22'
1' 29'
1.25' 36'
1.5' 43'
1.75' 51'
2' 58'
2.5' 72'
3' 87'
3.5' 101'
4' 116'
4.5' 130'
5' 145'
6' 174'
8' 232'
10' 290'
12' 348'
16' 464'
18' 522'
20' 580'
24' 696'
30' 870'
36' 1044'
48' 1392'
0.5' 12'
0.75' 19'
1' 25'
1.25' 31'
1.5' 37'
1.75' 43'
2' 50'
2.5' 62'
3' 75'
3.5' 87'
4' 100'
4.5' 112'
5' 125'
6' 150'
8' 200'
10' 250'
12' 300'
16' 400'
18' 450'
20' 500'
24' 600'
30' 750'
36' 900'
48' 1200'


The information presented in this chart represents data interpreted from the Pennsylvania Transportation Institute, Penn State University and the United States Sign Council (USSC) ©1998.
Please refer to the original study, Sign Legibility.
The impact of Color and Illumination on Typical On-Premise
Sign Fonts.
For further details please contact the USSC at (215) 785-1922.



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